ConsumerLab.com uses JavaScript to provide the best possible experience for our content, but your browser has it disabled. Learn how to enable it here.

Reviews & Articles

Membership & Subscription

About ConsumerLab.com

About Testing

News

  1. Home
  2. / Clinical Updates

Clinical Updates

Search
Acai Berry (1)
Acetyl-L-Carnitine Supplements (11)
Alginate Supplements (For Reflux) (4)
Aloe Juices, Gels, and Supplements (2)
Alpha-Lipoic Acid Supplements (10)
Apple Cider Vinegar (11)
Ashwagandha Supplements (33)
Astaxanthin Supplements (5)
Avocado Oil (5)
B Vitamin Supplements (178)
Berberine Supplements (11)
Bone Broth (2)
Calcium Supplements (46)
Cancer Prevention (1)
CBD & Hemp Extract Supplements (60)
Chia Seed (3)
Cholesterol-Lowering Supplements (Sterols/Stanols and Policosanol) (12)
Choline Supplements (20)
Chromium Supplements (1)
Cinnamon Supplements and Spices (23)
CLA Supplements (2)
Cocoa Powders, Dark Chocolate, Extracts, Nibs & Supplements (63)
Coconut and MCT Oils (14)
Coconut Waters (2)
Collagen Supplements (41)
CoQ10 and Ubiquinol Supplements (47)
Cranberry Juices and Supplements (19)
Digestive Enzymes (10)
D-Mannose Supplements (3)
Echinacea Supplements (3)
Elderberry Supplements (5)
Electrolytes (3)
Essential Oils (6)
Evening Primrose & Flaxseed (ALA/GLA) (11)
Extra Virgin Olive Oil (40)
Fish Oil /Omega-3 Fatty Acid Supplements (245)
Flaxseed (9)
Fruits, Veggies, and Other Greens Supplements (14)
GABA Supplements (3)
Garcinia Cambogia (HCA) Supplements (6)
Garlic Supplements (12)
Ginger Supplements (17)
Ginkgo Supplements (8)
Ginseng Supplements (10)
Green Coffee Bean Extract Supplements (2)
Green Tea Supplements and Drinks (63)
HGH - human growth hormone (1)
Hoodia Supplements (1)
Huperzine A Supplements (2)
Inactive Ingredients (11)
Iron Supplements (44)
Joint Health for Animals (12)
Joint Health Supplements (24)
Kelp (Supplements) (4)
Lactose Intolerance Products (1)
L-Arginine Supplements (23)
L-Citrulline Supplements (1)
Lion's Mane and Chaga Mushroom Supplements (9)
Low-Dose Lithium Supplements (6)
L-Theanine Supplements (9)
L-tryptophan and 5-Hydroxy-L-tryptophan (5-HTP) (4)
Lycopene Supplements (7)
Lysine Supplements (1)
Maca Supplements (2)
Magnesium Supplements (65)
Melatonin Supplements (81)
Menopause Supplements (20)
Milk Thistle Supplements (4)
Multivitamin and Multimineral Supplements (37)
Muscle & Workout Supplements (Creatine and BCAAs) (33)
NAC (N-Acetyl Cysteine) Supplements (24)
NAD Boosters (NAD+/NADH, Nicotinamide Riboside, and NMN) (17)
Nutrition Bars (4)
Oat Cereals (13)
Phosphatidylserine Supplements (2)
Plant Based Milks (11)
Pomegranate Juice and Supplements (1)
Potassium Iodide/Iodate (Radioprotective Agents) (1)
Potassium Supplements (18)
PQQ (Pyrroloquinoline Quinone) (2)
Prebiotics (11)
Probiotics (145)
Prostate Supplements (Saw Palmetto and Beta-Sitosterol) (12)
Protein Powders (80)
Psyllium Fiber Supplements (14)
Quercetin & Rutin Supplements (14)
Red Yeast Rice Supplements (26)
Reishi Mushroom Supplements (10)
Resveratrol (Red Wine, Knotweed and Other Sources) (18)
Saffron Supplements (4)
SAMe Supplements (6)
Seaweed Snacks and Foods (3)
Selenium Supplements (12)
Sexual Enhancers (4)
Shelled Walnuts (Halves & Pieces) (2)
St. John's Wort Supplements (5)
Taurine Supplements (1)
Tuna, Salmon & Sardines (29)
Turmeric and Curcumin Supplements and Spices (110)
Valerian Supplements (4)
Vision Supplements with Lutein, Zeaxanthin & AREDS2 Formulas (27)
Vitamin A Supplements (9)
Vitamin C (42)
Vitamin D Supplements (319)
Vitamin E Supplements (23)
Vitamin K Supplements (18)
Water Filter Pitchers (27)
Weight Loss Supplements (7-Keto DHEA, Forskolin and Stimulant Blend Supplements) (3)
Wellbutrin vs. Generic Bupropion (2)
Zinc Supplements and Lozenges (26)
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011

Maca Supplements

Maca for Improved Functioning?

April 12, 2019
Favorited Not Favorited
Do maca supplements improve functioning and lessen fatigue? A recent study found different results for men and women. Get the details in the What It Does section of the Maca Supplements Review. Also see our top choices among maca products.

Lead in Maca Powder

February 02, 2018
Favorited Not Favorited
A woman in California who was taking maca powder daily to treat fatigue found it was also increasing the concentration of lead in her blood. More concerning is that the amount of lead in her maca was only 1/3 the lead level in one of the popular maca powders tested by ConsumerLab.com. Get the details, and find out which maca supplements passed or failed ConsumerLab.com’s tests in the Maca Supplements Review.